Automatic stop-motion for can-body-forming machines.



APPUCATION FILEDJAN 28' 1910.

Patmted Spt. 21, 1915.

6 SHEETS SHEET i.

Figi- WITNESSES C. W. GRAHAM.

AUTOMATIC STOP MOTION FOR CAN BODY FORMING MACHINES.

APPLICATION HLED JAN. 28, I910.

1.,154:,244.-. Patentedfiept. 21, 1915.

6 SHEETSSHEET 2.

By I j I I ATTORNEYS v C W. GRAHAN.

AUTOMATIC STOP MOTION FOR CAN BODY FORMWG MACHINES.

APPLICATION FILED JAN.2B.1910.

PafentedSept. 21, 1915.,

6 SHEETS-SHEET 3.

Fig. 3"

WITNESSES ATTORNEY C W. GRAHAM.

AUTOMATIC STOP MOTION FOR CAN BODY FORMING MACHINES.

APPLICATION FILED JMLZE. VHO.

luivntvd T H I I u v WITNESSES:

Arm/may 0. w. GRAHAM...

AUTOMATIC STOP MOTION FOR CAN BODY FORMING MACHINES. APPLICATION FILED IAN. 28. 19111.

Patent-ed Sept. 21, 1915.

s SHEETS-SHEET s.

0. W. GRAHAM. AUTOMATIC STOP MOTION FOR CAN BODY FORMING MACHINES.

APPLICATION FILED IAN.28. 1910. I

Patented Sept. 21, 1915.

6 SHEETS-SHE E16.

Fig- 8- I Fig. 7-

/ INVENTOR Arron/WEN? I I Mm By sii able ends,

wherein the operation of blank feeding 4 'UNITED, STATES Pannier ora ion CHARLES W; GRAHAM, OF ROME, NEW YORK, ASSIGNOR- TO AMERIGJiN GAN COMQPANY, A CORPQBATION OF NEW JERSEY.

AUTOMATIC STOP-MOTION Fen CAN-BQDY-FORMING MACHINES.

L ane i4.

Specification of Letters Fatent.

Patented Sept. 3:31, this".

Application filed'January 28, 1910. Serial He. 540,568.

residing at Rome, in the county of Oneida,

State of New York, have invented certain new and useful Improvements in Automatic Stop-Motions for Can-Body-Forming Machines, of which the following is a specifieation.

This invention relates in y to an automatic stop mechanism, and is herein disclosed as applied to can making machinery.

One of the objects of the invention is to provide new and improved means for instantly stopping the action of an element under given conditions, by disrupting the operative connect-ion between said element and a constantly moving part which actuates it.

A further object is to accomplishsuch a disruption automatically, and preferably by electromechanical meansbof' such construction and arrangement that its action shall "moving part and saidclement; automatically operative, preferably electrically controlled, means for allowing movement of the movable member into such operative relation; and means for moving it out of such relation again.

A more specific object of the invention is to provide can making machinery with means attaining the above and other deand to devise mechanism means may be instantly and automatically stopped upon the happening of a given circumr uice.

I also aim to provide a device in which interruption of the feed is automatically brought about through "the intermediary of electrically controlled meanswhose operation is determined by that'of the feeding means, andby a characteristic, such as given thickness, ot the material or blank fed.

Other. objects and aims, more or less broad thanthose stated above, will be in part obvious and in part specifically ac.- verted to in the course of the following detftlled description, in which the elements,

combinations, and arrangements of parts constituting the invention are set fortln and the scope of the application thereoitindicated in the appended. claims.

In the accompanying drawings, which are to be taken as a part of this specification, and in which I have shown merely preferred forms of embodiment of the invention and 'the various contributing devices; Figure 1 is a rear elevation of a can melting machine embodying my invention; Fig. sec tional plan View on the line 2--9 of 3; Fig. 3 isia vertical section on the line of Fig. 1; Fig. at is a side elevation taken at right angles to the view of 1 the casing being partly broken away; Fig. 5 is a. detail sectional plan of part of the clutch opcrating means; Fig. 6 is a detail of "the manually operated means for returning the gravity member to normal position; Fig. 7

is a side elevation, partly sectionai and partly schematic, illustrating the mechanism and electrical connections for controlling the gravity member and Fig. 8 is a section on the line 8-8 of Fig. 7.

Referring to the drawings, wherein illustrated a machine embodvin the above u I.

and other features of my invention, there is shown a frame comprising broadly a base 1, upon which are erected various standards which support the driving shafts of various operative parts, constituting a can body making machine, sa'd standards being pre erably formed integral with the base portion as shown. a

The various operative parts of the ma- "clzine are driven from the main drive shaft which extends transversely of the mm chine near the central portion thereof, journuled, in bearings carried by suitable standards 3 and at, and provided exteriorly of the machine with the pulley 5, which may be driven from any suitable source of power. Main drive shaft 2 is provided with the worm wheel 6, which meshes with the worm wheel 7 loosely mounted upon a secondary shaft 8.

9 indicates a bevel. gear fixed upon shaft 7 8, and 10 a clutch member slidably mounted 'cated clutch-lever or sl1i]') per-fork as by means of the crank 3 pin and A bifur- 11 straddles the member which is keyed to the shaft 8, the bifurcated ends of the-lever catory movement by means of a. slot connectu'n'i, not referenced.

being provided with anti-friction rollers 12 that engage a circmnferential groove '13 of the member it). Obviously, by moving the lever 11 the clutch end l-l of the member 10 may be moved into or out of .engagementwith a ctn'respondingly shaped. member 15" fast to the constantly rotating worm wheel T, with the'etfect of positively driving the. fl and shaft 5% or not. as desired. (tear n fast on the forwardend of the shaft its engageun-nt with bevel gear 16 an upright shaft 17, 'journaled in a fiiflxll di'tl 18, that drives, through the inter rat-diary of an .=picycloid gear 19. a reciproblank feeder Lil (see Figs. 1 and 3).

blank feeder 21 has a depending en- :33 provided with a bore adapted ,rjniding-member 2-l on which ding portion recipro ates back and tili'virrccijn-ocating lllOY; aent deri ed from the internal cpie cloid gear 19 by means of a pinion, lfil, mounted on an arm lag, pivotally secured to an extension 101:3 on the depending portion 23 of the carrier it. The slide it is provided with a plurality of springaontrolled feed fingers or dogs 22, arranged in the usual manner for feeding blanks through the machine step by step. The oppositeend of shaft 8 operates. as by means of eta-entries 2t) and "35 and various connected parts, the bending men'ibers not. shown. which are adapted to bend the edged blanks about the born 28, which rests against: a yoke Qt) located centrally of the machine. Shaft 3 also drives l the bumping mechanlsm 32 employed to jam the interlocked flange portions of the can body against horn 28. A worm wheel 33, driven from a worm gear St on shaft 8, actuates a shaft 235 suitably journaled in the frame parallel to shaft 1:. which carries at its opposite ends eccentrics ll), through whichare actuated edging devices 37. There also mounted on shaft l? a sprocket wheel 3H, which drives. by, means of chain 3%.. a sprocket wheel 40,

mounted on a shaft ll suitably journaled in the machine frame parallel to shaft 2, but on the other side thereof from shaft 35. Shaft 41 actuates eccentrics 42 at opposite ends thereof, through which are operated the notchers 4-3.

t indicates a crank on the end of shaft 8, eXterioi-ly of the machine, which, through connections 45, 46 and +7 reciprocates the horn expander 48.

A mechanism denoted by 49 mounted upon the top portion of the machine is adapted to maintain the blanks tlatwise against the bed or table'50.

The blank feeder, 21 extends across the machine past notching devices :3, edging devices 37, and to horn and bumper 32, and by its I'QClPlOtltlOl] is adapted, in a manner well understood, to j'n'ogress a blank to each of said operating mechanisms in turn. For the purposes of these mechanisms it is expedient that only one blank at a time be presented to any one of them, and that said blank should be of proper thickness. Therefore I provide a means which, when too many blanks or an improper blank ma he accidentally or otherwise presented, will immediately act to stop the feed, thus preventing the possibility of damage. To this end I provide the machine, suitably spaced above the table 50 of the machine. a member which, through intermediate devices, will stop the action of the feeding device by disrupting the operative connection between the feeding means and the counter shaft, through movement of the clntch'that connects them. The control for said disrupting means in the present invention being electrical, the said member takes'the form of a contact piece 51, carried in a housing 52, and pivoted at its lower end, as indicated at 53. The lower end of member 51 carries a partthat extends forwardly of the machine, preferably provided with a roller 5+, carried on an eccentric screw held by set screw 56, whereby the roller may be secured in de-' sired vertical adjustment. A stem 5T,ex- 'tends upwardly into the htmsing, and is provided with electrically connected taint-acts 5H, 55), adapted to engage respectively contacts (30, (31, insulatedl'y mounted in the back of the housing, and forming the terminals of a circuit (1, diagrammatically indicated in Fig. 7. A spring (52 on, the housing bears against the member 51 to hold the contacts 58, 59, normally separated from contacts ($0, (31, and keep the roller at projected slightly below the housing, as shown in Fig.1.

33 indicates a stop piece for the member 51, which may be adjustable to regulate the amount of possible projection of roller 54.

Normally the roller projects to such an e.\'-- tent that a blank of proper thickness may pass between it and the table, and so that if more than one blank, or. is presented. the roller will be engaged thereby and forced back and up to close. the circuit referred to, with effects hereinafter de scribed. I i

The clutch lever 11 is fast on a rock-shaft (34 that is pivoted on a bracket (35 on the machine frame, so that, rotative movement of the said rock-shaft will cause movement of the clutch lever. Such rotative. movement of the rock-shaft is brought about automati-- cally by means of an arm (36, which is adapt- I ed to be operated from a moving part of the at the front end of.

a too thick blank,

'disjunct.

machine when the circuit C? is closed. For manual control of the clutch, the rockshaft may be provided with a handle 37.

' 68 indicates an eccentricnpon the shaft l7, and ($9 an eccentric rod. provided at. its outer end with a wrist-pin 70 that engages a block 71 slidable in a way 72 on a bracket 73 fast to the machine frame. The arrangement of parts is pref ablv-such that the path oi re,- ciprocation of block 71 is alined with armlhi, though thesepa-rts are normally physically It is obvious that if a connecting member be interposed between blocl= 71 and arm 66, to transmit the movement of the former to the latter, the clutch may be operated to disconnect the gear 7 from the shaft 8. Such connecting means preferably takes the form of a gravity member 7%, which may include a rod Tbslidablc and adapted to be held in a sleeve 76 suitably secured to the end frame of the machine. Adjacent its upper-end the rod is provided with an upwardly tapering portion 77, tern'iinating in an abrupt shoulder 78, with which is adapted to engage the end of a finger TJ, that is pivoted outside the sleeve and spring-pressed so that a portion 81 thereof extends through an aperture 82 in the sleeve, to engage the rod 75. When the rod is slid upwardly a sutlicientdistance, the end of part 81, which is shaped conformably with the taper 77, will engage with the shoulder 78, and thus hold the rod in uplifted position. The finger 79 constitutes the armature of an electro-magnet 83 that is mounted on'a bracket insulatedly secured to sleeve 76, the, coils of said magnet beingiincluded in the-circuit C, so that when said circuit is closed the member 79 will be moved against the pressure of its spring to withdraw the portion 81' from engagement with shoulder 78, thereby permitting the rod 75 to slide downwardly in its sleeve by gravity.

Secured to the. lower end of rod '15 1s a piece 84, provided with abore in which is slidable a member 85, which may have a collar 86 to limit its sliding movement in one direction. Pivotal moveme t of rod 75 within its sleevei's prevented by the engagement with a slot 87 in arm Goof a pm exten-- sion 88 on member said pin moving vertically in the slot rod 75 moves. i 89 indicates a support for the piece S l, which limits the downward Thoveinent of rod 75,'and which maybe pivoted on the bracket 73 and provided with a handle 90, by the manipulationiof which the rod may be moved up into renewed engagement with finger 81.

ll he parts are so disposed that the member 85, when the rod 75 has reached its limit of -down'wa'rd movement will be in the line otmovementof. block 71, and extending longitudinally between the latter and the clutch-lever arm 65; and member is of such length that when block 71 is at the inwardlimit of its stroke, as shown in Fig. 5, it will contact one end of member 85 and" slide it within the bore of piece Sl to contact and move the arm (36, supposing the latter to be in the position shown in Fig. 1, which is its position when the gear 9 is driven by the countenshatt and the blank-feeding means operating. I

In the operation of the device, if the feed-- ing device moves a blank along the table that is too thick to pass between the table and the roller 54 without moving the latter, or if two blanks are presented, the member 51 will be moved on its pivot to close the tween the shaft 8 andthe constantly driven gear 7, thereby stopping the machine.

It will be observed that the operation of the stopping means is particularly rapid and certain, involves but few parts, and the very simplest mechanical functions.

I desire .it understood that I do not limit my claims by the details of construction shown, in which I, have simply illustrated one way of embodying the creative part or conception of the invention in concrete form in a structure or machine. The described olevices are simply embodiments of the invention which other structures might embody, and some of the parts, as also combinations ofparts, might well be used without the;

others in difierent types of such machines,

without departure from the purview of my,

invention; and I regard myself as entitled to such variations from the shown and described devices as fall within the scope of my invention as indicated in the-claims. It is also to be understood that materials, sizes,

"and relativities of parts are unimportant,

except as they are specified inithe claims.

Having thus described my invention .what

I claim as new and desire to secureby Letters Patent is 1. In a machine of the character described a blank feeding. means; aiclutch connection v in combination: a constantly moving part;

clever and said second moving part; devices for holding the gravity member normally out of operative position; and-automatically operative, electrically controlled means for operating said devices to release the gravity member to vause the latter to establish operativc connection between said second moving part and the clutch moving lever, the operation of said means being dependent upon that of the feeding means. substantially as specified.

"2. In a machine of the characterdescribed, in combination: a constantly moving part; a blank feeding means: a clutch connection between said part and the feeding means; a lever for moving the clutch into and out of operative position; a second moving part; a gravity meinbe adapted to establish operative connection between said clutch moving lever and the second moving part; devices for holding the gravity member normally out of operative relation; and. automatically operative means tor controllii'ig the position of said devices and adapted to operate the latter to thereby release and permit the gravity member to establish operative connection between said second moving part and the clutch moving lever. the operation of said aiitoimitically operative means being dependent upon that of the feeding means. substantially as specified.

3. In a machine of the character described, in combination: a coiist-antly moving part; a blank feeding means; a clutch connection between said part and the feeding means; a lever for moving the clutch into and out of operative position: asecond moving part: a gravity member adapted to establish operative connection between said clutch moving love and said second moving part: devices tor holding said gravity member normally out of operative relation: and mains governing the movements of said devices, substantially as specified.

4. In a machine of the character described. in combination: a constantly moving part; a blank feeding means a clutch connection between said part and the feeding means; means for moving the clutch into and out ot' operative position; a rcciprixzating incinher: a gravity member adapted to establish operative connection between said clutch moving means and said reciprocating member: devices for holding'said gravity inciii- In a machine of the character dcscribeih in combination: a constantly moving part; a blank l'ecding means: a clutch connection between said )tii't and the feedin means;

means. for moving tliccliitch into and out of operative position; a second normally,

constantly moving part; a gravity member adapted to establish operative connection between said clutch moving means and said second inoving part; devices for holding said gravity member normally out of operative-relation; and automatically operative means controlling said devices and adapted to operate the latter and thereby release the gravity member and permit the latter to es tablish operative connection between said second moving part and the clutch moving means, substantially as specified.

. (i. Ina machine of the character described, in combination: a constantly moving part; a blank feeding means; a clutch connection between said part and the feeding means: means for movingthe clutch into and out. of operative position; a second. normally constantly moving part: a gravity member adapted to establish operative connection between said clutch moving means and said second moving part: devices for holding said gravity member normally out of operative relation; and automatically operative means controlling said devices and adapted to operate the latter and thereby release the gravity member and permit the latter to establish operative connection between said second moving part and the clutch moving means,

the operation of said automatically oper- .ativ means being dependent upon that of the feeding means, substantially as specified.

7. In a' machine of the character described, in combination: a constantly moving part; a blank feeding means; a clutch connection between said part and the feeding means and movable intoand out of opei'ative position; a second moving part; a gravity member adapted to establish operative connection between said clutch and the second moving part; devices for holding the gravity member normally out of operative relation; and automatically operative means governing the movements of said devices rel aise the. gravity member and permit the same to establish operative connection between said second moving part and the clutch. the operation of said automatically operative means being dependent upon that 01' the feeding means, substantially as speci- H. In a machine of the character described. in combination: a constantly moving part; a blank feeding means; a clutch conncction'between said part and the feeding means; a. bell crank lever'for moving the clutch into and out of operative position; a second moving part; a gravity member adapted to establish operative connection between said bell crank lever and said second moving part; devices for holding said gravity member normally out of operative relation; and aiitoii'iatically operated; electi-ically controlled inean'sgoverning said deand adapted to operate the latter to thereby no vices and adapted to move the latter to thereby release said gravity 'mcmber, the operation of said automatically operative means being dependent upon that of the feeding means, substantially specified.

5). in a machine of the character de-- 'tablish operative connection between said moving part and the bell crank lever, substantially as specified. f a

10, In, a machine of the character-described, in combination: a blank feeding means' a shaft; a gear connected with the feeding means; a clutch adapted to throw said gear into and out of rotative relation with said shaft; means for moving the clutch; an element driven from the shaft in alinemcnt with the clutch moving means but normally unconnected therewith; a slidable member adapted to be interposed and form an operative connection between said cle ment and said clutch moving means; and

means permitting said sliding member to be interposed between said element and the clutch moving means to thereby disrupt the operative relation between the shaft and gear, substantially as specified.

11. In a machine of the character described, in combination: a blank feeding means; a shaft; a gear connected with the feeding means; a clutch adapted to throw said gear into and out of rotative relation with said shaft; means for moving the clutch; an element driven from the shaft in alinement with the clutch moving means but normally unconnected therewith; a slidable somber adapted to be interposed and form an operative connection between said element and said clntcn mo ing means; and automatically operative means permitting said sliding member to be interposed be tween said element and the clutch moving means to thereby disrupt the operative rela tion between the shaft and gear, substantially as specified.

12. in a machine of the character described, in combination: a blank feeding means; a shaft; a gear connected to said ing means; a clutch adapted to throw a gear into and out of rotative relation with said sl'ia'tt;, ;m.eans for moving the clutch; an element driven from the shaft in alinement with-the clutch inovingmeans, but normally unconnected therewith; a gravity member adapted to be interposed and form an operative connection between said element and said clutch moving means; a slee e in which said gravity member is slidable; devices for holding the gravity member in an elevated position; means for retracting said holding devices to thereby permit the gravity member to slide downwardly inthe '75 sleeve and assume its interposed relation between said element and the clutch moving means; and manually operative iiieaiis for moving said clutch, substantially asspecified. 13.In a machine of the character (lo-- scribed, in combination: a continuously moving part; mechanism for feeding sheets; means for operatively connecting said part, with said mechanism; a member'for moving said means into and out of operative relation between said part and said -mechanism; a second moving part operatively connected with the first named moving part; an element-adapted, when in one position, to cs tablish operative connection between said member and said second moving part and arranged to assume such position. except when prevented from so doing; normally stationary means for preventing said element from assuming said position; and automatically operative means including a normally stationary magnet for operating said preventing means to cause the latter to release said element to thereby establish operative connection between said second named moving part and said first named means.

14:. In a machine of the character described, in combination: a constantly moving' part; feeding means normally cooperative with said part; and means for disrupt ing. said relation, said means including a second part constantly movable under normal conditions of the feeding means, a member normally held stationary and movable 119 into operative'position relatively to said second named part, and devices controlling the position of said movable member, substan-' tially as specified.

15. In a machine of the character described, in combination: a constantly moving part; feeding means; a clutch connection between. said part and the feeding means and movable into and out of operative position; a second moving part; a member, normally held immovable, adapted to establish operative connection between said clutch and said second moving part; and means normally holding said member stationary and-out of operative position and adapted to release the same when abnormal conditions occur in the feeding means, substantially as specified.

16.111 a machine of the character described, in combination: blank" feeding ti'vely interposed between said first two members to thereby break the 0])(5Lflt1Y0 (ion- 7 nection between said constantly mming part and the feeding mechanism, substantially as specified.

In testimony whereof I afiix my signature in thepresenee of. two witnesses.

CHARLES lV. GRAHAM. WVitnesses:

B. ,V. COULDOCK, FRANK J. KENT. 

